Setup

Install cargo-mobile2

cargo install --git https://github.com/tauri-apps/cargo-mobile2

To update the libray just run:

cargo mobile update

Now in order to build properly you need to have an ANDROID_HOME & NDK_HOME environment variable set. Either do it manually or download Andorid Studio Download via paru:

paru -S android-studio

HINT: This can also be used to simulate an android phone on your device

Now setup Android Studio on default configuration. After click on more Actions under Projects. Here select SDK Manager and afterwards SDK Tools then install NDK (Side by side).

After installation add the ANDROID_HOME and NDK_HOME environment variable to your shell. For fish add:

## Android
set --export ANDROID_HOME $HOME/Android/Sdk
set -gx PATH $ANDROID_HOME/emulator $PATH;
set -gx PATH $ANDROID_HOME/tools $PATH;
set -gx PATH $ANDROID_HOME/tools/bin $PATH;
set -gx PATH $ANDROID_HOME/platform-tools $PATH;

set --export NDK_HOME $HOME/Android/Sdk/ndk/27.0.12077973

to your config.fish.

For this project you need a java version between 18-21. Check your java version via:

java --version

if it is not between java 18-21 please install a new/older version. I would recommend openjdk-21. You can download it with:

paru -S openjdk21-src

Then for arch-users you can change it via:

archlinux-java set java-21-openjdk

Now you should be all set

Build

It is possibile to build for different platforms. For linux:

cargo build

For connected android devices: (Install App and Run)

cargo android run

Otherwise you can build the apk file with:

cargo android apk build

egui

This is an example based on agdk-egui example, using egui, winit and wgpu to run egui_demo_app.

To run this on desktop, just do cargo run like normal! For mobile, use cargo android run and cargo apple run respectively (or use cargo android open and cargo apple open to open in Android Studio and Xcode respectively).